US 1789132 A
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Description (OCR text may contain errors)
A. BIRCH Jan. 13, 193 1.
MACHINE FOR EXTRACTING FLUID FROM CLOTH OR OTHER MATERIAL Filed may 51, 1 930 2.Sheets-Sheet 1 lnQenTof 'A\berT Birch byWMkM ATTys.
- Ja1; .13,1931. ABRCH" -1',789,132-
MACHINE FOR EXTRAC'I'ING FLUID FROM CLOTH OR OTHER MATERIAL.
' Filed May '51. 1950 2 Sheets-Sheet 2 \nvenTor.
A\ berT Birch by AdTy-S.
Patented Jan. 13', 1931 ALBERT BIRCH, 70F BELMONT; MASSACHUSETTS MACHINE FUR EXTRACTING FLUID FROM CLOTH OR OTHER MATERIAL Application filed ma 31,
This invention relates to a machine for extracting' liquid or fluid from cloth or other web material and particularly to a machine of the so-called vacuum hydro extractor type. These machines are usuallyfprovided with a tube or pipeover which the'cloth passes and which is provided with one ormore slots SUthatasthecloth is drawn'overthe pipe it will pa'ssacross the slot or slots;
Thepipeor tube is connected toa vacuum or suction device by means of which vacuuni conditions are created within the tube. As a result the vacuumwithin the tube will act onthe portion of theoloth which spans the slot or slots of the tube thereby sucking or drawing the water or other fluid from the cloth, the fluid being deposited in the tube and being removed either by'drainage or by means of thesuction device.
I Intheseflmachi'nesthe cloth is'often of less width than the'length of the slotted portion of the tube so" that the "extremities of the slotted portion are beyond the edges of the cloth; The present invention relates particu- 2 't ovel'mean's'for automatically Olos-' in'g these uncovered porti ofthe Slot g slots.
The features wherein the invention resides will be more fullyhereinatter set forth and then pointedout in the appendedclaimsi In the drawings: Fig." 1 isa. fragmentarysectional view illustrating a portion of a Vacuum tube ofa hydro extractor and showing one form which Fig. 2 is'a transverse section throug'h Fig;
ig. 3 is a sectionontlie line3'3; Fig; 2 g i Fig; 4 is a view of one. of the slot-closing 4'0 fin e-rs"; i v
Fig. 5 is an endview of t Fig. 9- is a fragmentary perspective View showingfa difi'erent embodiment of the inventron.
so Inasmuch as the present invention relates 1980.; Serial No. 458,815.
but have shown only a sufficient portion thereof to enable the invention to be understood.
7 In Figs. 1 and 2, 1 indicates the vacuum tube over which the cloth 3 is passed. said tube having one or more slots tormed'therein so situated that the cloth passes over the slotted portion of the tube. The tube may have one or a plurality of slots and the slots may'have any desired arrangement so long: as they are located in the portion of thetube with which' the cloth engages as it is moved forward; In the particular j construction f sh own'the tube isvprov-ided with a single slot 45 extending longitudinally thereof. 1 a
This tubeis shown ass upported in suitable brackets or suppOrts' lO which are carri ed by the machine and it will be understood that it is connected to a suitable suction apparatus so that vacuum conditions will be 1 created within the tube. i
The slot'or slots in theitube may extend 7 beyond the edges of thetcloth from which the-fluid is being extracted, in which case'the ends of the slot or slots willbe exposed beyond the" edges of the cloth;
i As stated above, my present invention relates to a novel means for automatically clos ing' the exposed portions of the slot or slots; In the construction shown in Figs. 1 to 5 this is accomplished by means of slot-closing fingers 5 in the form of strips of'suita'ble material 'which are supported at one end in a suitable support 6 and at their other end restv on the tube and closethe slot thereof. As the clothis drawn over the tube 1 the edges ofthecloth will pass under certain of the slot-closing fingers thereby raising them slightly from the tube but the fingers which are-outside of the'e'dge of the cloth will maintain the exposed portion ofthe slot or slots closed. V a V 7 g In the construction shown in Figs. 1 to 5 i each finger-is secured to a hub portion 7 and thesejhubs are situated within the tubular support 6 and a'reloosely mounted on av rod 7 S W'hich extendsaxially of thetubula'r'support 6. This support 6 is provided with a longitudinal slot 9 through which the fingers extend. The tubular member 6 is shown as carried by a bracket arm 10 extending from the support 4 for the vacuum tube. With this construction the fingers 5 are capable of independent movement so that the particular fingers under which the cloth 3 passes are free to be raised slightly to permit the cloth to pass freely while the remaining fingers will lie against the vacuum tube 1 and.
7 withdrawn will automatically drop into position to close theadditional portion of the slot which'is thus uncovered. f
In Figsro and 7 I have shown a somewhat different embodiment of the invention. In
this construction thevarious slot-closing fingers, which are indicated at 50, are integrally connected together, they being formed from a piece of sheet material '16 by slitting the same as indicated at 11. These slits extend I shown at 15.
from the edge of the sheet part way toward the opposite edge; The connected gang of fingers50i's illustrated as secured to a supporting rod 12 which is'carried by the bracket arm 10 extending from the support 14 for the vacuum tube 1. i
In order to preventthe slot-closing fingers from catching on each other as they are raised or lowered due to any shift in the position of the edge of. the cloth, I propose to make the slot-closing end of the fingers so that they will have a vertical dimension greater than any vertlcalmovement whichthey will have during the operation of the machine. This may be readily accomplished by making the end portion of each finger'consiclerably thicker than the body thereof as This is shown in Fig. 7 where theindividual fingers are indicated at 15,
they being formed as shown in Fig. 6 by making slits in a piece of sheet material 17. Where the fingers are thus formed from sheet material the added thickness may be provided by securing a block 18 to the end of each finger 15. These blocks will have a vertical dimension greater than any vertical movement which the fingers may have in the normaloperation of the machine,
. I propose to make each block 18 slightly wider than the corresponding finger, the eX- tra width being sufficient to make up for the width of the slits l1 and with this construction the side faces of adjacent blocks will engage each other so there will be no cracks or spaces between the portions of adjacent fingers that overlie the slot 4. With such a construction there will be more uniform extraction of the fluid from the cloth than where the spaces exist between adjacent fingers.
block 53 secured thereto at its end to provide the 'desirea added thickness at this point. In this embodiment the sheet material 52 is secured at its non-slitted end to the under side of a tube 54 which is suitably supported in. bracketsor arms. 7 r a In this embodiment a flexible flap member 56 of rubber, rubberized cloth or similar material overlies the fingers, said flexible flap. member being secured atone edge to the tube 54 as shown at 57. This fiap member'applies a certain amount of weight tothe fingers to retain them firmly against the cloth and it also serves to close any cracks or spaces, that might existbetween the fingers and thereby secures more uniform extraction of moisture.
Where the slot-closing fingers are situated at the ends of the tube'only as shown in Figs. 1 and 6 the two edges of the cloth will pass under some of the fingers while the center portion of the cloth is entirely exposed. With such an arrangement the fluid is likely to be extracted to a different extent from the portion of the cloth that is exposed from what it is in theportion'of the cloth covered by the fingers. It ijsvwithin my invention to place the fingers throughout the full length ofthe. vacuum tube l and where this is donefthe fluid will be uniformly extracted fromthe cloth throughout its entire width.
The construction offingers shown in Figs. 7 and 9 hasthe advantage that since the adj acent fingersare in contact with each other the effect on the cloth is the same as if it were drawn under a solid sheet of metal and even a cloth of delicatetexture canbe passed under the fingers without any marks or streaks left thereon by the individual fingers.
I claim 1. In a machine for extracting fluid from cloth, the combination with a vacuum tube provided with a slot' over which the cloth to be treated is drawn, a supporting member situated in the rear of said tube, a plurality of independently movable slot-closing fingers carried by said supporting member and having their free ends resting on the tube at the slotted portion thereof and normally closing the slot. 7
2. In a device .of the class described, the combination with a vacuum tube having. a slot, asupport for said tube, a bracket extending from said support, a plurality of slot-closing fingers mounted on the bracket and having their free ends overlying the slot of the vacuum tube.
3. In a machine for extractingfluid from cloth, the combination with a vacuum tube provided with a slot over which the cloth to be treated is drawn, a supporting member situated in the rear of said tube, a plurality of independently movable slot-closing fingers carried by said supporting member and having their free ends resting on the tube at the slot thereof and normally closing the slot the free end of each slot-closing finger having a vertical dimension greater than any vertical movement which the finger has in operation of the machine. I In testimony whereof, I have signed my nameto this specification.